//特殊类型  联合类型
var pp = 66;
pp = "ad";
pp = true;
var arr = [34, 54, "df"];
//字面量
var ppp = "6";
var ppp2 = 66;
var ppp3 = "da";
var vv = 45;
var p = {
    name: "dgd",
    age: 21
};
var lll = {
    name: "js",
    age: 23,
    id: 1,
    height: 181
};
var llll = {
    name: "js",
    age: 23,
    id: 1
};
//断言 as
var e1 = 76;
console.log(e1.toFixed(2));
var kkk = "dsjk";
console.log(kkk.length);
function get1() {
    return 6;
}
var res = get1();
console.log(res);
